*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
.clearfix:before,
.clearfix:after{
    content: "";
    display: block;
    clear: both;
}
header{
    background: #62bbe7;
}
.container{
    width: 870px;
    margin: auto;
}
/*nav部分*/
nav{
    padding: 10px 0;
}
nav div{
    width: 33.333333%;
    float: left;
}
nav div:first-child{
    height: 10px;
}
nav div:nth-of-type(2){
    text-align: center;
}
nav div:nth-of-type(3){
    font-size: 12px;
    text-align: right;
    font-weight: bold;
}
nav a{
    color: #ffffff;
    text-decoration: none;
    line-height: 33px;
}
nav a img{
    display: none;
}
/*banner部分*/
.banner{
    margin-top: 60px;
}
.banner div{
    width: 50%;
    float: left;
    color: #ffffff;
}
.banner p{
    font-weight: bold;
}
.banner h1{
    font-weight: 300;
    font-size: 37px;
    padding-bottom: 24px;
}
.banner a{
    text-decoration: none;
    color: #fff;
    font-size: 12px;
    font-weight: bold;
    background: #2996cc;
    padding: 15px 50px;
    display: inline-block;
    transition: 0.5s;
}
.banner a:hover{
    background: #128acc;
}
.banner div img{
    display: block;
    width: 100%;
}
/*主体部分*/
section{
    margin-top: 60px;
}
.list{
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 60px;
    margin-bottom: 60px ;
}
 .list .container div{
     width: 25%;
     float: left;
     padding: 0 10px;
     text-align: center;
}
.container h3{
    padding: 15px 0 10px;
    font-size: 14px;
}
.list .container p{
    font-size: 14px;
    color: #727c8d;
    letter-spacing: -0.5px;
}
/*首页APP下载部分*/
.download{
    text-align: center;
}
.download h2{
    font-size: 28px;
    font-weight: 300;
    color: #2e3b4e;
    margin-bottom: 20px;
}
.download p:nth-of-type(1){
    color: #6b7587;
    margin-bottom: 30px;
}
.download p:nth-of-type(2){
    margin-bottom: 60px;
}
/*底部样式*/
footer{
    background: #1b2126;
    color: #475157;
    padding-top: 62px;
    padding-bottom: 70px;
}

/*响应式*/
@media (max-width:600px) {
    .container{
        width: 80%;
        text-align: center;
    }
    .banner div{
        width: 100%;
    }
    .banner a{
        margin-bottom: 20px;
    }
    .banner img{
        display: inline-block;
    }
    nav a span{
        display: none;
    }
    nav a img{
        display: inline-block;
    }
    .list .container div{
        width: 100%;
        margin-bottom: 66px;
    }
    .download p img{
        width: 45%;
    }
    .download p a{
        width: 100%;
    }
}